Why can’t Spencer Dinwiddie be a superstar franchise player?

[Dahlsim]

IMO his biggest value will be in having a 3rd player (to complement Luka and JB) that can attack the rim and create offense, because when someone is off (like Luka the last 2 games for long stretches), there's another way to create some offense. 

Dinwiddie, Brunson looks right as Luka support. You'd like one of your stars on the front line but Luka's ability to play big is Lebron-like so it may work as long as he has all star caliber play to support him for stretches.  
They don't necessarily need to make all star teams but similar to Jrue Holiday for the Bucks last season, they need to provide stretches at that level of superior play. 

Feels like a real potential Big 3 for Luka Magic and even the supporting cast, Powell, Kleber, Bullock, DFS. 
Cuban has to find a way through the cap hell, time to pay up and keep that competitive core in place.